﻿
public delegate void CallBack();
public delegate void CallBack<T>(T t);
public delegate void CallBack<T,T1>(T t,T1 t1);
public delegate void CallBack<T, T1,T2>(T t, T1 t1,T2 t2);
public delegate void CallBack<T, T1, T2, T3>(T t, T1 t1, T2 t2,T3 t3);